chore(weaviate): upgrade bundled Weaviate server to 1.39.0

The bundled self-hosted Weaviate was pinned to 1.27.0, twelve minors behind
the current release. Weaviate backports fixes to the latest patch of roughly
the newest four minors, so 1.27 no longer receives them.

1.39.0 ships no breaking changes, and neither the storage format nor Dify's
collection layout (Vector_index_<dataset_id>_Node, self-provided named vector
"default", cosine) changes, so existing data stays forward compatible with no
re-indexing.

Also pulls from cr.weaviate.io, the registry Weaviate publishes to directly,
and documents WEAVIATE_GRPC_ENDPOINT / EXPOSE_WEAVIATE_GRPC_PORT in the env
examples — gRPC has been required since 1.27 but was never spelled out.

Existing 1.27 deployments must upgrade one minor at a time; jumping straight
to 1.39 is untested upstream.

api/.env.example

@@ -231,6 +231,7 @@ VECTOR_INDEX_NAME_PREFIX=Vector_index
 
 # Weaviate configuration
 WEAVIATE_ENDPOINT=http://localhost:8080
+WEAVIATE_GRPC_ENDPOINT=grpc://localhost:50051
 WEAVIATE_API_KEY=WVF5YThaHlkYwhGUSmCRgsX3tD5ngdN8pkih
 WEAVIATE_BATCH_SIZE=100
 WEAVIATE_TOKENIZATION=word

api/tests/integration_tests/.env.example

@@ -61,6 +61,7 @@ CONSOLE_CORS_ALLOW_ORIGINS=http://127.0.0.1:3000,*
 VECTOR_STORE=weaviate
 # Weaviate configuration
 WEAVIATE_ENDPOINT=http://localhost:8080
+WEAVIATE_GRPC_ENDPOINT=grpc://localhost:50051
 WEAVIATE_API_KEY=WVF5YThaHlkYwhGUSmCRgsX3tD5ngdN8pkih
 WEAVIATE_BATCH_SIZE=100
 WEAVIATE_TOKENIZATION=word

docker/docker-compose-template.yaml

@@ -819,7 +819,7 @@ services:
 
   # The Weaviate vector store.
   weaviate:
-    image: semitechnologies/weaviate:1.27.0
+    image: cr.weaviate.io/semitechnologies/weaviate:1.39.0
     profiles:
       - weaviate
     restart: always

docker/docker-compose.middleware.yaml

@@ -226,7 +226,7 @@ services:
 
   # The Weaviate vector store.
   weaviate:
-    image: semitechnologies/weaviate:1.27.0
+    image: cr.weaviate.io/semitechnologies/weaviate:1.39.0
     profiles:
       - ""
       - weaviate

docker/docker-compose.yaml

@@ -825,7 +825,7 @@ services:
 
   # The Weaviate vector store.
   weaviate:
-    image: semitechnologies/weaviate:1.27.0
+    image: cr.weaviate.io/semitechnologies/weaviate:1.39.0
     profiles:
       - weaviate
     restart: always

docker/envs/middleware.env.example

@@ -147,6 +147,7 @@ EXPOSE_REDIS_PORT=6379
 EXPOSE_SANDBOX_PORT=8194
 EXPOSE_SSRF_PROXY_PORT=3128
 EXPOSE_WEAVIATE_PORT=8080
+EXPOSE_WEAVIATE_GRPC_PORT=50051
 
 # ------------------------------
 # Plugin Daemon Configuration